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The role of mycorrhizae in nutrient acquirement by Hinoki(Chamaecyparis obtusa) seedlings on fallen logs

Research Project

Project/Area Number 21580198
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Forest science
Research InstitutionForestry and Forest Products Research Institute

Principal Investigator

MIZOGUCHI Takeo  独立行政法人森林総合研究所, 関西支所, グループ長 (60353869)

Project Period (FY) 2009 – 2011
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2009: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywordsヒノキ / 倒木 / 粗大有機物 / 天然更新 / 更新立地 / 菌根形成 / 窒素濃度 / ヒノキ天然更新 / 木質粗大有機物 / 倒木更新 / 窒素 / アーバスキュラー菌根 / 形成率 / トラップカルチャー / 胞子形成 / 菌根 / 感染率 / 胞子密度 / 実生
Research Abstract

We observed a mycorrhizal status of Hinoki(Chamaecyparis obtusa) seedlings naturally raised on coarse woody debris(stumps or fallen logs) in two cites. In both cites, roots of those seedlings were highly infected by arbuscular mycorrhizal fungi and mycorrhizal colonization rate was not far different from that of seedlings raised on the adjacent mineral soil. However, nitrogen concentration of current year leaves of the seedlings were not significantly correlated with mycorrhizal colonization rate, thus advance of mycorrhizal colonization on the nitrogen nutrition was unclear. At least, coarse woody debris did not exclude or limit of the activity of arbuscular mycorrhizal fungi, and mycorrhizal fungi may perform same as in the soil. Woody debris is often thought as a safe cite of natural regeneration for Hinoki, and we showed a new fact of its mycorrhizal potential. Hereafter, further observation must be needed to clarify the role of mycorrhizal fungi on natural regeneration of Hinoki, particularly in the meaning of its nutritional contribution.

Report

(4 results)
  • 2011 Annual Research Report   Final Research Report ( PDF )
  • 2010 Annual Research Report
  • 2009 Annual Research Report
  • Research Products

    (4 results)

All 2010 Other

All Presentation (3 results) Remarks (1 results)

  • [Presentation] 局所分布する窒素に対するヒノキ、カラマツ細根の成長反応2010

    • Author(s)
      溝口岳男・平野恭弘・谷川東子・壁谷大介・長谷川元洋
    • Organizer
      日本森林学会
    • Place of Presentation
      筑波大学(つくば市)
    • Year and Date
      2010-04-04
    • Related Report
      2011 Final Research Report
  • [Presentation] 異質土壌環境下におけるヒノキの細根およびシュートの形態的・生理的可塑性2010

    • Author(s)
      牧田直樹・杉元貴信・平野恭弘・谷川東子・溝口岳男・石井弘明
    • Organizer
      日本森林学会
    • Place of Presentation
      筑波大学(つくば市)
    • Year and Date
      2010-04-04
    • Related Report
      2011 Final Research Report
  • [Presentation] 局所分布する窒素に対するヒノキ、カラマツ細根の成長反応2010

    • Author(s)
      溝口岳男, 平野恭弘, 谷川東子, 壁谷大介, 長谷川元洋
    • Organizer
      日本森林学会第121回大会
    • Place of Presentation
      筑波大学(茨城県つくば市)
    • Year and Date
      2010-04-04
    • Related Report
      2010 Annual Research Report
  • [Remarks] 独立行政法人森林総合研究所 関西支所研究情報Webページ

    • URL

      http://www.fsm.affrc.go.jp/Joho/res_info_095.pdf

    • Related Report
      2009 Annual Research Report

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Published: 2009-04-01   Modified: 2016-04-21  

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